Many restaurant menus include the origins of a dish, it is prepared, what the main ingredients are, and which farms the ingredients e from.
A. when
B. how
C. what
D. which
网友回答
A. when
(答案→)B. how
C. what
D. which
解析：句意：很多饭店的菜单包括一道菜的原料，怎么准备的，主要配料是什么，配料是来自什么农场。所以选B。